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1,245 results for “dating”
Passive Microwave-derived Annual Snowoff Date Maps, 1988-2023
This dataset provides annual maps of the snowoff (SO) date from 1988-2023 across Alaska and parts of Far East Russia and northwest Canada at a resolution of 6.25 km. SO date is defined as the last day of persistent snow and was derived from the MEaSUREs Calibrated Enhanced-Resolution Passive Microwave (PMW) EASE-Grid Brightness Temperature (Tb) Earth System Data Record (ESDR) product. The spatial domain was intended to match MODIS Alaska Snow Metrics and extend its temporal fidelity beyond the MODIS era. SO date estimates were compared to snow depth measurements collected at SNOTEL stations across Alaska and to three SO datasets derived from MODIS, Landsat, and the Interactive Multisensor Snow and Ice Mapping System (IMS). The data from 1988-2016 included a coastal mask removing coastal pixels due to potential water contamination from coarse brightness temperature observations (Dersken et al., 2012).
ABoVE: Passive Microwave-derived Annual Snow Melt Duration Date Maps, 1988-2018
This dataset provides the annual period of snowpack melting (i.e., snow melt duration, SMD) across northwest Canada; Alaska, U.S.; and parts of far eastern Russia at 6.25 km resolution for the period 1988-2018. SMD is the number of days between the main melt onset date (MMOD) and the last day of seasonal snow cover when the melting of snow is complete. These dates were derived from the Making Earth Science Data Records for Use in Research Environments (MEaSUREs) Calibrated Enhanced-Resolution Passive Microwave (PMW) EASE-Grid Brightness Temperature (Tb) Earth System Data Record (ESDR). This dataset documents variability in SMD across space and the 31-year temporal period. The data from 1988-2016 included a coastal mask removing coastal pixels due to potential water contamination from coarse brightness temperature observations (Dersken et al., 2012). There is not a coastal mask for the 2017-2018 data. The full data are included, and data users should be aware that coastal values can be adversely affected by adjacent water bodies.
LBA-ECO CD-08 Radiocarbon Dating of Tree Ages in Amazonas, Acre, and Para in Brazil
This data set reports the ages and growth rates of trees determined by radiocarbon dating (14C) in three Amazonia forests. Tree samples were collected from permanent research plots at ZF2 km 34, Manaus, Amazonas, the Catuaba Experimental Farm, Acre, and the km 83 tower site (logged forest site) in the Tapajos National Forest, Para, between 2001-2003.Samples from 97 individual trees were either tree cores (Manaus and Acre) or a combination of tree cores and slabs cut from stems as part of the logging in the Tapajos National Forest (Para). Radiocarbon dating (14C) was used to determine the age and the mean diameter growth increment of samples from individual trees in various diameter size classes. These measurements can be used to verify and extend short-term diameter increment measurements done with dendrometers and to constrain models of tree demography.There is one comma-separated ASCII data file with this data set.
BirthSeq, a new method to isolate and analyze dated cells in different vertebrates
GEO Series GSE270283. Mus musculus. 2 samples. Type: Expression profiling by high throughput sequencing.
A molecular staging model for accurately dating the endometrial biopsy [RNA-seq]
GEO Series GSE234354. Homo sapiens. 295 samples. Type: Expression profiling by high throughput sequencing.
Expression date from mouse peritoneum after intraperitoneal injection of chlorhexidine gluconate
GEO Series GSE162029. Mus musculus. 4 samples. Type: Expression profiling by array.
A Genome-Wide Identification of the miRNAome in Response to Salinity Stress in the Date palm tree (Phoenix dactylifera L.)
GEO Series GSE71445. Phoenix dactylifera. 4 samples. Type: Non-coding RNA profiling by high throughput sequencing.
Global warming increases latitudinal divergence in flowering dates of a perennial herb in humid regions across eastern Asia
<p>The phenology data in paper published in Agricultural and Forest Meteorology by Song et al. 2020, titled Global warming increases latitudinal divergence in flowering dates of a perennial herb in humid regions across eastern Asia.</p>
Calendar Dates and Days November 2020
<p>Days against each calendar date in November 2020</p>
Flowering time and the maturity date in field trial _ supplementary file for He et al_ASD
<p>Data on flowering time and grain yield for each of the 1,093 barley accessions, including the 895 genotyped accessions, were collected through field experimentsover three years in, 2015, 2016 and 2017, at five locations (Esperance, Geraldton, Katanning, Merredin, and South Perth) in Western Australia that significantly differ in terms of rainfall and temperature during the growing seasons. All regional field trials were planted in a randomised, complete-block design with plots of 1.1 by 3.0m<sup>2</sup>laid out in a row-column format. Field trials at South Perth were conducted using a hill plot technique with a 40-cm distance within and between rows. Seven control varieties were used for a spatial adjustment of the experimental data. In each plot of each experiment in the study, measurements were taken to determine the flowering time and grain yield. Awn emergence, defined as the number of days from sowing to the first awn of ~2 cm emerging above the flag leaf (Z49) was recorded as an equivalent to flowering time, and Z91 as days from sowing to maturity. werealso recorded when possible. Grain yield was estimated by harvesting all plant material from each plot to separate the grain from determining grain mass and from estimating the grain yield (kg.ha<sup>-1</sup>).</p>
Data from: Effects of interspecific coexistence on laying date and clutch size in two closely related species of hole‐nesting birds
Coexistence between great tits Parus major and blue tits Cyanistes caeruleus, but also other hole‐nesting taxa, constitutes a classic example of species co‐occurrence resulting in potential interference and exploitation competition for food and for breeding and roosting sites. However, the spatial and temporal variations in coexistence and its consequences for competition remain poorly understood. We used an extensive database on reproduction in nest boxes by great and blue tits based on 87 study plots across Europe and Northern Africa during 1957–2012 for a total of 19,075 great tit and 16,729 blue tit clutches to assess correlative evidence for a relationship between laying date and clutch size, respectively, and density consistent with effects of intraspecific and interspecific competition. In an initial set of analyses, we statistically controlled for a suite of site‐specific variables. We found evidence for an effect of intraspecific competition on blue tit laying date (later laying at higher density) and clutch size (smaller clutch size at higher density), but no evidence of significant effects of intraspecific competition in great tits, nor effects of interspecific competition for either species. To further control for site‐specific variation caused by a range of potentially confounding variables, we compared means and variances in laying date and clutch size of great and blue tits among three categories of difference in density between the two species. We exploited the fact that means and variances are generally positively correlated. If interspecific competition occurs, we predicted a reduction in mean and an increase in variance in clutch size in great tit and blue tit when density of heterospecifics is higher than the density of conspecifics, and for intraspecific competition, this reduction would occur when density of conspecifics is higher than the density of heterospecifics. Such comparisons of temporal patterns of means and variances revealed evidence, for both species, consistent with intraspecific competition and to a smaller extent with interspecific competition. These findings suggest that competition associated with reproductive behaviour between blue and great tits is widespread, but also varies across large spatial and temporal scales.
Data from: Can threatened species adapt in restored habitat? No expected evolutionary response in lay date for the New Zealand hihi
Many bird species have been observed shifting their laying date to earlier in the year in response to climate change. However the vast majority of these studies were performed on non-threatened species, less impacted by reduced genetic diversity (which is expected to limit evolutionary response) as a consequence of genetic bottlenecks, drift and population isolation. Here we study the relationship between lay date and fitness, as well as its genetic basis, to understand the evolutionary constraints on phenology faced by threatened species using a recently reintroduced population of the endangered New Zealand passerine, the hihi (Notiomystis cincta). A large discrepancy between the optimal laying date and the mode of laying date creates a strong selection differential of -11.24. The impact of this discrepancy on fitness is principally mediated through survival of offspring from hatchling to fledgling. This discrepancy does not seem to arise from a difference in female quality or a trade-off with lifetime breeding success. We find that start of breeding season depends on female age and average temperature prior to the breeding season. Laying date is not found to be significantly heritable. Overall, our research suggests that this discrepancy is a burden on hihi fitness, which will not be resolved through evolution or phenotypic plasticity. More generally, these results show that threatened species introduced to restored habitats might lack adaptive potential and plasticity to adjust their phenology to their new environment. This constraint is also likely to limit their ability to face future challenges, including climate change.
Snow water equivalent for reference date April 1 for Wägital catchment, 1943-2025
<p>Total water reserves of the snow cover [mio m3] for Wägital catchment, Switzerland, for reference date April 1. Data is separated in 2 elevation zones 900m-1500m asl and 1500m-2300m asl. Time period 1943-2025, status 2025-04-30.</p><p>Funded currently or in the past by</p><ul><li>Federal Office of Meteorology and Climatology MeteoSwiss in the context of GCOS Switzerland</li><li>Meteodat GmbH</li><li>Institute of Geography, University of Zurich</li><li>WSL Institute for Snow and Avalanche Research SLF</li><li>Institute of Geography, ETH Zurich (IAC ETH Zurich)</li><li>AG Kraftwerk Wägital (AXPO and EWZ)</li></ul><br><p>See also <a href="https://www.meteodat.ch/waegital.html">https://www.meteodat.ch/waegital.html</a></p>
Data from: Aster rupestris (Asteraceae, Astereae), a new species from Guizhou, China: Evidence from morphological, molecular and cytological date
[No abstract entered]
TrypTag: plate A9051 (replicate dated 20151124)
TrypTag genome-wide protein localisation project data. Widefield epifluorescence microscope images of protein subcellular localisation in the unicellular eukaryotic pathogen <i>Trypanosoma brucei</i> by endogenous tagging with mNeonGreen (mNG). Raw microscopy data and per-cell line localisation annotation for plate A9051, replicate dated 20151124.
TrypTag: plate A1685 (replicate dated 20150514)
TrypTag genome-wide protein localisation project data. Widefield epifluorescence microscope images of protein subcellular localisation in the unicellular eukaryotic pathogen <i>Trypanosoma brucei</i> by endogenous tagging with mNeonGreen (mNG). Raw microscopy data and per-cell line localisation annotation for plate A1685, replicate dated 20150514.
TrypTag: plate A1685 (replicate dated 20160217)
TrypTag genome-wide protein localisation project data. Widefield epifluorescence microscope images of protein subcellular localisation in the unicellular eukaryotic pathogen <i>Trypanosoma brucei</i> by endogenous tagging with mNeonGreen (mNG). Raw microscopy data and per-cell line localisation annotation for plate A1685, replicate dated 20160217.
TrypTag: plate U8507 (replicate dated 20161027)
TrypTag genome-wide protein localisation project data. Widefield epifluorescence microscope images of protein subcellular localisation in the unicellular eukaryotic pathogen <i>Trypanosoma brucei</i> by endogenous tagging with mNeonGreen (mNG). Raw microscopy data and per-cell line localisation annotation for plate U8507, replicate dated 20161027.
TrypTag: plate U5326 (replicate dated 20160414)
TrypTag genome-wide protein localisation project data. Widefield epifluorescence microscope images of protein subcellular localisation in the unicellular eukaryotic pathogen <i>Trypanosoma brucei</i> by endogenous tagging with mNeonGreen (mNG). Raw microscopy data and per-cell line localisation annotation for plate U5326, replicate dated 20160414.
Figure 6 from: Erkens RHJ, Oosterhof J, Westra LYT, Maas PJM (2017) Revisions of Ruizodendron and Pseudephedranthus (Annonaceae) including a new species and an overview of most up-to-date revisions of Neotropical Annonaceae genera. PhytoKeys 86: 75-96. https://doi.org/10.3897/phytokeys.86.13773
Figure 6 - a Branch of Pseudephedranthus fragrans b Monocarps (Maas et al. 6878, U).
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Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
ABODe is a University of Edinburgh DataShare dataset for behavior classification in group-housed mice using home-cage video, identities, bounding boxes, ground-plate positions, and annotator labels.
DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.